/* ==========================================================================
   navigation.css — Modern Light Navigation Header
   Inspired by Reference Designs 1, 4, and 5
   ========================================================================== */

.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  pointer-events: none;
}

#main-navbar {
  pointer-events: all;
  background: rgba(255, 255, 255, 0.90);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  height: 72px;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
}

/* Brand Logo — Editorial style: Name + role stacked */
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-brand-identity {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.nav-brand-name {
  font-family: 'Space Grotesk', var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
  line-height: 1;
}

.nav-brand-role {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0;
  line-height: 1;
}

/* Desktop Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  color: var(--color-text-body);
  font-family: var(--font-body);
  font-size: 0.925rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-full);
  transition: all 0.2s ease;
  cursor: pointer;
}

.nav-link-item:hover {
  color: var(--color-primary);
  background: var(--color-surface-soft);
}

#main-navbar .nav-link-item.active {
  color: var(--color-primary) !important;
  background: var(--color-primary-light) !important;
  font-weight: 600;
}

/* "Let's Talk" CTA — clean dark button */
.nav-cta-magnetic {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-text-main);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease;
}

.nav-cta-magnetic:hover {
  background: var(--color-primary);
  color: #FFFFFF;
}

.nav-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-body);
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-theme-toggle:hover {
  background: var(--color-border);
  color: var(--color-text-main);
}

.nav-hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-main);
  cursor: pointer;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Mobile Drawer */
#mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  background: var(--color-surface-white);
  border-left: 1px solid var(--color-border);
  z-index: 200;
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.3s ease, visibility 0.3s ease;
  box-shadow: -10px 0 30px rgba(0,0,0,0.1);
}

#mobile-drawer.open {
  transform: translateX(0);
  visibility: visible;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-body);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  margin-bottom: 4px;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

.mobile-drawer-footer {
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

#mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

#mobile-drawer-overlay.show {
  opacity: 1;
  pointer-events: all;
}

@media (max-width: 767px) {
  #main-navbar {
    height: 64px;
    padding: 0 var(--space-4);
  }
  .nav-links,
  .nav-cta-magnetic,
  .nav-theme-toggle {
    display: none;
  }
  .nav-hamburger {
    display: inline-flex;
  }
}